Details

The /etc/gshadow file is critical to system security and must be protected from unauthorized modification. The /etc/gshadow file contains a list of system groups and hashes for group passwords.

Solution

Remove the extended ACL from the file.
# setfacl –remove-all /etc/gshadow

Supportive Information

The following resource is also helpful.

• http://iasecontent.disa.mil/stigs/zip/U_RedHat_5_V1R18_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.

References

• 800-53|AC-6
• CAT|II
• CCI|CCI-000225
• Group-ID|V-22344
• Rule-ID|SV-37176r1_rule
• STIG-ID|GEN000000-LNX001434
• Vuln-ID|V-22344

Source

• Tenable.com/audits